AT&T just announced in a flurry of press releases that it expanded 4G data network coverage to customers in nine new cities. It further revealed over 40 more LTE markets will light up by the end of 2012 and its 4G network now covers 275 million folks in the United States. It is also the only stateside carrier to provide 4G using both HSPA+ and LTE technologies.

The nine cities:

Anchorage, Alaska

Bakersfield, Calif.

Bridgeport, Conn.

Jacksonville, Fla.

Modesto, Calif.

North Montgomery County, Md.

Syracuse, N.Y.

Omaha, Neb.

Northern N.J.

The additional markets:

Albany, N.Y.

Albuquerque, N.M.

Allentown, Pa.

Birmingham, Ala.

Boise, Idaho

Charleston, S.C.

Cincinnati, Ohio

Columbia, S.C.

Columbus, Ohio

Denver-Boulder, Colo.

Detroit, Mich.

El Paso, Texas

Fayetteville, N.C.

Ft. Myers, Fla.

Gary, Ind.

Grand Rapids, Mich.

Green Bay, Wis.

Harrisburg, Pa.

Hartford, Conn.

Hawaii

Knoxville, Tenn.

Lancaster, Pa.

Little Rock, Ark.

Louisville, Ky.

Memphis, Tenn.

Milwaukee, Wis.

Nashua, N.H.

New Haven, Conn.

Philadelphia, Pa.

Pittsburgh, Pa.

Portland, Ore.

Providence, R.I.

Reading, Pa.

Rochester, N.Y.

Sacramento, Calif.

Salinas-Seaside-Monterey, Calif.

Seattle, Wash.

Springfield, Mass.

Toledo, Ohio

Tucson, Ariz.

Tulsa, Okla.

Wilkes-Barre, Pa.

Wilmington, Del.

“Over the past five years, AT&T invested more than $115 billion into operations and into acquiring spectrum and other assets that have enhanced our wireless and wired networks,” said AT&T in a press release.

Check out more facts in the carrier’s infographic below, and get all the pressers at AT&T’s website.